Hardness Scales | McMaster-Carr

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Rockwell Hardness Scale

Hardness

Measures

For Use On

Hardness Measured Range

For Durometer Shore

System of Measurement

Width

Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

Not Compliant

DFARS Specialty Metals

RoHS

Height

Specifications Met

Display Type

Length

Depth

Material

Durometer Hardness Measuring Range

Diameter

Ball Indenter Diameter

Hardness Measuring Range

Brinell 95 to Brinell 650

Durometer 30 OO to Durometer 70 OO

Durometer 30A to Durometer 90A

Durometer 20D to Durometer 80D

Durometer 30M to Durometer 90M

Hardness Measuring Increments

0.1

4.25

Brinell Hardness Measuring Range

650

Maximum Number of Readings Stored

100

2,000

Vickers Hardness Measuring Range

51 Products

Hardness Calibration Test Blocks

Rockwell Hardness Calibration Test Blocks

Ensure Rockwell hardness testers are calibrated accurately

4 products

Individual Brinell Hardness Calibration Test Bars

Swap out blocks in your Brinell hardness tester to test different hardness levels

1 product

Brinell Hardness Calibration Test Blocks

Confirm Brinell hardness testers are calibrated accurately

4 products

Durometer Hardness Calibration Test Block Sets

Confirm your durometer hardness tester is taking accurate readings

4 products

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Determine the Rockwell, Brinell, or Durometer hardness of any material

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Hard enough to make impressions on most metal to determine Brinell hardness

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